Irregularly shaped part hole drilling clamping tool

Abstract

This utility model discloses a clamping fixture for machining holes in irregularly shaped parts, including a mounting plate, a positioning block, and multiple positioning elements. The irregularly shaped part to be machined is referred to as the workpiece, and a pre-machined through hole is formed on the workpiece. The positioning block is circular, and its size corresponds to the through hole of the workpiece. The positioning block is fixedly disposed in the center of the front side of the mounting plate, so that the positioning block and the mounting plate together form a positioning boss for the workpiece. Multiple positioning elements are located at different positions on the edge of the workpiece to jointly achieve the positioning of the workpiece. The advantages of this utility model are: This utility model uses the circular positioning boss formed by the mounting plate and the positioning block to hold the through hole of the irregularly shaped part, ensuring concentricity, and achieves positioning and fastening through the positioning elements and U-shaped pressure plate, thereby effectively improving the machining accuracy while ensuring the production capacity of irregularly shaped parts.

Description

Technical Field

[0001] This utility model relates to the field of clamping tooling technology, and in particular to a clamping tooling for machining holes in irregularly shaped parts. Background Technology

[0002] In industrial production, machining holes in non-central locations on irregularly shaped parts presents significant challenges. Currently, the common method involves first marking machining lines on the part, then clamping and aligning the part using a lathe chuck before machining. However, the irregular shape of these parts makes clamping and alignment difficult, leading to low machining efficiency and accuracy. Therefore, it is necessary to design a fixture for machining holes in irregularly shaped parts. Utility Model Content

[0003] The purpose of this utility model is to provide an improved front-mounted hydraulic cylinder control system for dump trucks, which solves the technical problems existing in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A fixture for clamping machined holes in irregularly shaped parts includes a mounting plate, a positioning block, and multiple positioning components;

[0006] The irregularly shaped parts to be processed are called processed parts, and the processed parts have pre-processed through holes;

[0007] The positioning block is circular and its size corresponds to the through hole of the workpiece;

[0008] The positioning block is fixedly disposed in the center of the front of the mounting plate, so that the positioning block and the mounting plate together form a positioning boss of the workpiece;

[0009] Multiple positioning elements are located at different positions on the edge of the workpiece to jointly achieve the positioning of the workpiece.

[0010] In some embodiments, the device further includes a chuck, which is configured with a plurality of jaws for fixing the mounting plate as a whole onto the chuck, with the back of the mounting plate facing the chuck.

[0011] In some embodiments, the chuck is a three-jaw chuck, configured with three jaws.

[0012] In some embodiments, the plurality of positioning elements are a plurality of positioning pins and / or positioning screws.

[0013] In some embodiments, a plurality of U-shaped pressure plates are also included, each U-shaped pressure plate being equipped with a locking screw;

[0014] The locking screw includes a main body and an expansion head. The main body passes through the central gap of the U-shaped pressure plate and is locked and fixed on the mounting plate. The expansion head is too large to pass through the central gap of the U-shaped pressure plate, so as to press the U-shaped pressure plate tightly onto the surface of the workpiece.

[0015] Compared with the prior art, the advantages of this utility model are as follows:

[0016] The irregular-shaped parts machining hole clamping fixture provided by this utility model uses a circular positioning boss formed by the mounting plate and the positioning block to hold the through hole of the irregular-shaped parts to ensure concentricity. The positioning and installation are achieved by positioning components and U-shaped pressure plates, thereby effectively improving the machining accuracy while ensuring the production capacity of irregular-shaped parts. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this embodiment, the accompanying drawings used in the description of the embodiment will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the tooling for clamping holes in irregularly shaped parts provided by this utility model.

[0019] Explanation of reference numerals in the attached diagram: 1. Mounting plate; 2. Positioning block; 3. Machined part; 4. Positioning pin; 5. Positioning screw; 6. U-shaped pressure plate; 7. Chuck; 8. Clamping claw; 9. Locking screw. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In addition, the appearance of the term "horizontal" does not mean that the component is required to be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0023] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] In one specific embodiment, refer to Figure 1 As shown, this utility model provides a clamping fixture for machining holes in irregularly shaped parts, including a mounting plate 1, a positioning block 2, and multiple positioning components; the irregularly shaped part to be machined is referred to as the machining part 3, and the machining part 3 has a pre-machined through hole; the positioning block 2 is circular and its size corresponds to the through hole of the machining part 3; the positioning block 2 is fixedly set in the center of the front side of the mounting plate 1, so that the positioning block 2 and the mounting plate 1 together form a positioning boss of the machining part 3; the multiple positioning components are located at different positions on the edge of the machining part 3 to jointly achieve the positioning of the machining part 3.

[0026] Preferably, the irregularly shaped component machining hole clamping fixture further includes a chuck 7, which is equipped with multiple jaws 8 for fixing the mounting plate 1 as a whole on the chuck 7, with the back of the mounting plate 1 facing the chuck 7.

[0027] In the illustrated embodiment, the chuck 7 is a three-jaw chuck 7, which is equipped with three jaws 8.

[0028] Preferably, the multiple positioning elements are multiple positioning pins 4 and / or positioning screws 5. In the illustrated embodiment, it includes one positioning pin 4 and two positioning screws 5.

[0029] In addition, the irregularly shaped part machining hole clamping fixture also includes several U-shaped pressure plates 6, each U-shaped pressure plate 6 is equipped with a locking screw 9; the locking screw 9 includes a main body and an expansion head, the main body passes through the middle gap of the U-shaped pressure plate 6 and is locked and fixed on the mounting plate 1, and the size of the expansion head cannot pass through the middle gap of the U-shaped pressure plate 6, so as to press the U-shaped pressure plate 6 tightly on the surface of the workpiece 3.

[0030] In this embodiment, a three-jaw chuck 7 with a diameter of 250mm can be used; the positioning pin 4 can be a 10*30 cylindrical positioning pin, that is, a diameter of 10mm and a length of 30mm; the positioning screw 5 and the locking screw 9 can both be M12*50 round head screws, that is, a diameter of 12mm and a length of 50mm.

[0031] In one specific embodiment, the application process of the irregular-shaped component machining hole clamping fixture (hereinafter referred to as the fixture) provided by this utility model is as follows:

[0032] In this embodiment, the workpiece 3 is a lifting support plate. Its central hole has specific machining accuracy requirements and production capacity requirements; therefore, a lathe is used for machining to ensure both accuracy and production capacity. Before using this fixture, pre-machining is performed using external fixtures. The pre-machined workpiece 3 already has a central through hole, but its accuracy is low, thus requiring further machining. When using this fixture, the workpiece 3 is first placed tightly against the mounting plate 1 in a predetermined position. At this time, the circular positioning boss formed by the mounting plate 1 and the positioning block 2 secures the through hole of the workpiece 3. Positioning is achieved through multiple positioning elements 4, and then fastened with a U-shaped pressure plate 6 and locking screws 9. Finally, the mounting plate 1 is clamped onto the three-jaw chuck 7 for lathe machining of the workpiece 3. This method effectively improves machining accuracy while ensuring production capacity for irregularly shaped parts.

[0033] Finally, it should be noted that the above description is only an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An irregularly shaped part hole boring clamping tool characterized by, Includes mounting plate (1), positioning block (2) and multiple positioning components; The irregularly shaped parts to be processed are called processed parts (3), and the processed parts (3) have pre-processed through holes; The positioning block (2) is circular and its size corresponds to the through hole of the workpiece (3); The positioning block (2) is fixedly disposed in the center of the front of the mounting plate (1), so that the positioning block (2) and the mounting plate (1) together form the positioning boss of the workpiece (3); Multiple positioning elements are located at different positions on the edge of the workpiece (3) to jointly achieve the positioning of the workpiece (3).

2. The irregularly shaped part hole clamping tool according to claim 1, wherein It also includes a chuck (7), which is equipped with multiple claws (8) for fixing the mounting plate (1) as a whole on the chuck (7), and the back of the mounting plate (1) faces the chuck (7).

3. The fixture for clamping holes in irregularly shaped parts according to claim 2, characterized in that, The chuck (7) is a three-jaw chuck (7) and is equipped with three jaws (8).

4. The fixture for clamping holes in irregularly shaped parts according to claim 1, characterized in that, The multiple positioning elements are multiple positioning pins (4) and / or positioning screws (5).

5. The fixture for clamping holes in irregularly shaped parts according to claim 4, characterized in that, It also includes several U-shaped pressure plates (6), each of which is equipped with a locking screw (9); The locking screw (9) includes a main body and an expansion head. The main body passes through the middle gap of the U-shaped pressure plate (6) and is locked and fixed on the mounting plate (1). The size of the expansion head cannot pass through the middle gap of the U-shaped pressure plate (6) so as to press the U-shaped pressure plate (6) onto the surface of the workpiece (3).

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